Hybridized plasmon modes and near-field enhancement of metallic nanoparticle-dimer on a mirror

Huang, Yu; Ma, Li; Hou, Mengjing; Li, Jianghao; Xie, Zheng; Zhang, Zhengjun

doi:10.1038/srep30011

Cited by 89 publications

(60 citation statements)

References 75 publications

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“…The broadband near-field enhancement |E/E 0 | was extracted using a box-shaped electric field monitor closely surrounding the NPOM nanostructure. The average volume integral of |E/E 0 | was obtained from the average near-field enhancement spectroscopy as follows: 17,36,44,45 Near-field enhancement ¼…”

Section: Near-field Enhancement Calculationmentioning

confidence: 99%

“…The skin effect and integration of Gauss's law were used to calculate the surface charge density (r). 17,21,37,44 A large induced charge density (r r ) was assumed to be present at the surface (S) of the metal, and this density decreased exponentially as it spread within the metal as per the skin effect.…”

Section: Three-dimensional Surface Charge Mappingmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] Understanding plasmonic mode fundamentals and properties is critical, as these factors play a defining role in material performance. [15][16][17][18][19][20][21] Factors like flexibility and simplicity in fabrication, good geometrical tolerance, large dielectric layer thicknesses with superior device characteristics, and low-cost processing are essential for developing next-generation devices with multiple applications. [22][23][24][25][26][27][28][29] Significantly, the nanoparticle shape, material, design, and size in a plasmonic device play considerable roles in determining the localized surface plasmon resonance (LSPR) and near-field enhancement properties.…”

Section: Introductionmentioning

confidence: 99%

“…The origins of plasmonic modes (dipole, quadrupole, and other higher-order modes) and mode transitions in the presence of geometrical modifications are important for determining device properties (e.g., the light coupling efficiency, light confinement, extraction, and absorption). [16][17][18]20,30,36,37 These mode properties define the plasmonic nanocavity strength and light confinement probability based on geometric tolerances. Superior light confinement at sub-wavelength scales and the deterioration of near-field enhancement are primarily defined by these plasmonic modes and their modifications under various geometric conditions.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Defining the plasmonic cavity performance based on mode transitions to realize highly efficient device design

Devaraj

Lee

et al. 2020

Mater. Adv.

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Section: Near-field Enhancement Calculationmentioning

confidence: 99%

Section: Three-dimensional Surface Charge Mappingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Defining the plasmonic cavity performance based on mode transitions to realize highly efficient device design

Devaraj

Lee

et al. 2020

Mater. Adv.

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show abstract

“…When placed on infinitely thick silver, the local field intensity is increased by a factor of about ten and the largest electric field intensity is localized at the free space directly around the point of contact of nanosphere and infinitely thick silver. This is mainly due to the interaction between the silver nanosphere and its mirror image induced by the silver surface forming a gap plasmon mode . Consequently, the absorption spectra in Figure c differ from each other.…”

Section: Resultsmentioning

confidence: 94%

Plasmonic Black Metasurface by Transfer Printing

Meudt

Jakob

Polywka

et al. 2018

Adv Materials Technologies

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also drawn enormous attention due to their highly tunable electromagnetic proper ties over a broad range of frequencies and novel fields of research such as flatland optics, hyperlenses, and nanoscopic phase manipulation [7][8][9][10][11][12][13][14][15] Especially plasmonic metasurfaces benefit from extraordinary high field intensities, enabling improved absorption of electromagnetic radiation at visible and infrared wavelengths. [16][17][18][19][20] Providing high electrical with thermal con ductivity, plasmonic metamaterial absorbers are therefore promising for various appli cations such as solar energy harves ting, [21,22] heat management, [18] electro thermal systems, [23] sensors [5,17,24] as well as nonlinear optics, [25] and could also serve as electrodes and heat sinks at the same time.In order to achieve absorption in plas monic metasurface-based systems, several methods have been developed. Many of them rely on expensive bottomup processes or need relatively large amounts of metal and/or strongly roughened surfaces in order to obtain broadband absorption. [26][27][28] On the other hand, highly absorbing systems with low material consumption have been realized using dielectric films in order to build metal-insu lator-metal (MIM) absorbers. [9,29,30] Further on, recent MIM absorbers are compatible with costefficient statistical large scale production methods. [31][32][33][34] However, due to the dielectric films, the electrical and thermal conductivity of MIM absorbers are not ideal. If the functionality of MIM absorbers could be preserved without any dielectrics, highly conductive broadband absorbers on large scales with low production costs would be achieved.We present a novel metasurface consisting of only silver, demonstrating the resonant nature of MIM absorbers without the necessity of any insulating spacer material. The technique is performed by polydimethylsiloxane (PDMS)assisted transfer printing of silver nanoparticles (AgNP) directly on top of a thin continuous silver (Ag) film, thus forming a metasurface. In addition to that, the technique can easily be used for costefficient, largearea fabrication on arbitrary substrates. The development of the metasurface is based on the experimental observation, that the absorption of AgNP films on PDMS is significantly enhanced, when they are brought into contact with a silver thin film. Results and Discussion Preliminary Simulation of Simplified GeometriesWe first study this phenomenon with numerical simula tions, whereby AgNPs are approximated by perfect silver In various applications simultaneous large optical absorption and large thermal and electrical conductivity are desired. As bulk materials cannot fulfill that need, metamaterials have been developed that often require complicated nanotechnology. The work presents the facile fabrication of black metasurfaces consisting of silver only. Silver nanoparticles (AgNPs) are transfer printed onto a silver film from a polydimethylsiloxane (PDMS) stamp. Numerical simulations confirm that gap plasmon modes b...

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Efficiency Improvement of Energy Harvesting Device Using Light Pressure Through Plasmon Coupling at the Interface Between Grained Ag Layer and Au Nanoparticles

Jang,

Lee,

Ryu

et al. 2023

Advanced Optical Materials

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Electricity generation using the piezoelectric effect is an important energy harvesting method. In this study, a solar radiation pressure‐driven crater‐shaped light pressure electric generator (LPEG) device with a Pb(Zr0.52, Ti0.48)O3 (PZT) piezoelectric layer and grained Ag layer is fabricated on GaAs(100) wafer. The electrical output of the device is improved by adsorbing Au nanoparticles (AuNPs) on the Ag layer with the surface of closely connected Ag nanoparticles (AgNPs). By controlling the size and concentration of the AuNPs, a maximum power density of 867.5 µW cm−2 is obtained under a solar simulator (AM 1.5G), which represents a 151.7% improvement over the case without AuNP adsorption. The results of Raman spectra, finite‐difference time‐domain (FDTD) simulations, and COMSOL Multiphysics demonstrate that the newly formed hotspots between AgNPs─AuNPs and AuNPs─AuNPs enhance the electric field of the incident light significantly and extend the region where the electric field is maximally amplified to 600–800 nm, resulting in increased solar radiation pressure on the PZT piezoelectric layer.

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Hybridized plasmon modes and near-field enhancement of metallic nanoparticle-dimer on a mirror

Cited by 89 publications

References 75 publications

Defining the plasmonic cavity performance based on mode transitions to realize highly efficient device design

Defining the plasmonic cavity performance based on mode transitions to realize highly efficient device design

Plasmonic Black Metasurface by Transfer Printing

Efficiency Improvement of Energy Harvesting Device Using Light Pressure Through Plasmon Coupling at the Interface Between Grained Ag Layer and Au Nanoparticles

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